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    • 6. 发明公开
    • Recording medium, method for recording/reproducing data, apparatus for recording/reproducing data
    • 记录媒体,记录/再现数据的方法,记录/再现数据的装置
    • KR20100088770A
    • 2010-08-11
    • KR20090007871
    • 2009-02-02
    • LG ELECTRONICS INC
    • LEE JAE SUNGSEO JEONG KYO
    • G11B7/004G11B7/007G11B19/12G11B20/10
    • G11B20/10527G11B7/0053G11B19/122G11B27/105G11B2020/1218G11B2020/1288G11B2220/20
    • PURPOSE: A recording medium, and a method and an apparatus for recording/reproducing data are provided to increase the recording capacity by reducing the recording pit in a wobble zone. CONSTITUTION: Type information indicating the type according to the recording capacity of a record layer of a recording medium is read out. The type of the recording medium is determined based on the type information. A servo operation is performed corresponding to the type so that data can be recorded in/reproduced from the recording medium. The type information is read from the free record zone of the recording medium. The type information comprises a first type and a second type which indicates the recording medium having a greater recording capacity than the first type. In case the recording medium is the second type, data is recorded with a record pit shorter than that in the first type. The recording medium includes a lead-in zone, a date zone, and a lead-out zone. The start position of the data zone is discriminated according to the type information. The data record/reproduction is performed in the discriminated data zone.
    • 目的:提供记录介质,以及用于记录/再现数据的方法和装置,以通过减小摆动区中的记录凹坑来增加记录容量。 构成:读出根据记录介质的记录层的记录容量指示类型的类型信息。 基于类型信息确定记录介质的类型。 对应于该类型执行伺服操作,使得可以从记录介质中记录/再现数据。 从记录介质的自由记录区读取类型信息。 类型信息包括第一类型和第二类型,其指示具有比第一类型更大的记录容量的记录介质。 在记录介质是第二种类型的情况下,以比第一类型更短的记录凹坑记录数据。 记录介质包括导入区,日期区和导出区。 根据类型信息区分数据区的起始位置。 在识别的数据区中执行数据记录/再现。
    • 7. 发明公开
    • 광 디스크 판별 방법
    • 分类光盘的方法
    • KR1020080092059A
    • 2008-10-15
    • KR1020070035405
    • 2007-04-11
    • 동부대우전자 주식회사
    • 강태식
    • G11B19/12G11B7/09
    • A method for classifying an optical disk is provided to reduce the time for detecting the type of a disk by checking whether a loaded optical disk is dual or single via waveform analysis of a focus error signal. A method for classifying an optical disk comprises the steps of: detecting a focusing error signal when an optical disk is loaded; detecting the number of ridges which exceed a reference value in a waveform of the focus error signal(S208); and checking whether the type of the loaded optical disk is dual or single based on the number of ridges.
    • 提供一种用于分类光盘的方法,通过检查加载的光盘是否是通过聚焦误差信号的波形分析是双重的或单个的,来减少检测盘的类型的时间。 一种用于对光盘进行分类的方法包括以下步骤:当加载光盘时检测聚焦误差信号; 检测超过聚焦误差信号的波形中的参考值的脊数(S208); 并且基于脊数来检查所加载的光盘的类型是双重还是单一的。
    • 10. 发明公开
    • 변별적 특징을 갖는 데이터를 기록하는 방법
    • 用于写具有特征特征的数据的方法
    • KR1020080078726A
    • 2008-08-27
    • KR1020087017509
    • 2006-12-14
    • 코닌클리케 필립스 엔.브이.
    • 덴홀란데르야코부스엠.
    • G11B20/10G11B19/12G11B23/28
    • G11B20/00086G11B20/0021G11B20/00369G11B20/00586G11B20/00594G11B20/00601G11B20/00746G11B20/00797
    • In the field of content distribution a typical problem is the protection of Digital Rights information (DRM), which is appended to the content and written on a record carrier in the form of a corresponding written pattern, from tampering by malicious users. According to some known schemes, the protection is implemented by linking the DRM to some physical distinctive feature of the corresponding written pattern. From this distinctive feature fingerprint data can be extracted with some conventional method, and used for the authentication of the DRM. The invention proposes a method of writing data wherein the formed written pattern has a radial offset, which is formed during writing as result of a non- controllable substantially random process. A corresponding apparatus for writing data, a method and an apparatus for extracting fingerprint data and a record carrier are also described.
    • 在内容分发领域,典型的问题是数字权利信息(DRM)的保护,该数字权利信息(DRM)被附加到内容上并且以对应的书写模式的形式写在记录载体上,以免被恶意用户篡改。 根据一些已知的方案,通过将DRM连接到对应的书写模式的一些物理特征来实现保护。 从这种独特的特征可以用一些常规方法提取指纹数据,并用于DRM​​的认证。 本发明提出了一种写入数据的方法,其中形成的写入图案具有径向偏移,其在写入期间形成为不可控的基本随机过程的结果。 还描述了用于写入数据的对应装置,用于提取指纹数据的方法和装置以及记录载体。